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Fast, Reliable Door Replacement Across Novato
Door replacement in Novato runs anywhere from about $900 for a basic fiberglass slab swap to $4,500+ for a full pre-hung entry system with sidelites. Most jobs land in the $1,800 to $3,200 range when you’re dealing with the kind of homes we see across Marin County. Juniper Windows & Doors has been doing this work since 2001, and our Door Replacement team knows exactly what Novato homeowners are up against: fog-belt rot, WUI code requirements, and older framing that rarely cooperates. We’re just a phone call away at (682) 281-2168.
Why Juniper Windows & Doors Is Novato’s Preferred Door Replacement Company
Sean Mackey built Juniper Windows & Doors on a pretty simple idea: write the price down before the first screw leaves the truck. That commitment matters in Novato, where a door quote that drifts upward at installation is a real pain point we hear about constantly. Our 365-Day Done Right Promise covers parts and labor in writing for a full year after installation. If something isn’t right, we come back and fix it. No charge, no argument.
Every technician who shows up at your Novato home is background-checked and uniformed. You’ll get a live arrival time you can track, before-and-after photos of the work, and a digital invoice you can pay from your phone. That’s the Relay Visibility Guarantee, and it applies to every job we do. Whether you’re off Ignacio Boulevard or tucked into the hills above Hamilton Field, we coordinate scheduling from our San Francisco Bay Area office and serve Novato locally with crews who know this terrain.
Door Contractors in Novato
Door Contractors in Novato handle the full replacement job: removing the old slab and frame, addressing any hidden rot or water damage, setting the new pre-hung unit, insulating, sealing, and trimming out the opening. You need a licensed contractor when the rough opening is out of square, when WUI fire-rated assembly rules kick in, or when the existing jamb has water damage you can’t see from the surface. A straightforward slab swap on a clean opening typically runs $900 to $1,600 in Novato. A full pre-hung replacement with new casing and threshold work generally lands between $1,800 and $3,200, and can go higher with sidelites or custom glass.
Entry System Replacement
Most Novato homes we visit have wood jambs that have been soaking up Marin fog for two or three decades. Replacing just the slab without addressing the jamb is a short-term fix. We scope the full opening, check the king and jack studs, and build the new unit to spec. If the door faces west toward the coastal fog line, we’ll recommend a rot-resistant composite jamb instead of wood. That detail alone can add ten years to the install.
WUI-Compliant Door Installations
Novato sits inside Marin County’s Wildland-Urban Interface, which means exterior door replacements in many neighborhoods must meet fire-rated assembly standards. That includes the door slab, the glazing, and sometimes the frame hardware. We handle the paperwork and coordinate with Marin County building inspectors so the door passes the first time. Miss this step and you’re reordering product and living without a front door for another three weeks.
Door Frame Repair in Novato
Door Frame Repair in Novato comes down to one recurring problem: fog and winter rain get into wood jambs, soften the bottom hinge area, and the whole door starts to sag or stick. We see it constantly in the Ignacio and Hamilton corridors, where marine air hangs around longer than it does up in the dryer hills. Repair usually involves cutting out the rotted section, splicing in new wood or composite, re-shimming, and resetting the hinges. A localized jamb repair at the bottom typically costs $350 to $700 in Novato. Full jamb replacement on both sides runs $800 to $1,400, depending on whether the threshold and brickmold need to come out too.
Rot Repair and Jamb Splicing
When fog and rain rot the bottom six to twelve inches of a door jamb, you don’t always need a full replacement. We cut out the damaged section, treat the exposed framing, and splice in rot-resistant material that won’t absorb moisture the way the original wood did. The repair is structural, not cosmetic, and we prime and paint the splice so it blends into the existing trim.
Threshold and Weatherstripping Correction
A door that closes but still lets fog-cooled air slip under the bottom rail is a frame alignment problem, not a door problem. We check the threshold height, the sweep, and the weatherstripping to close the gap. In older Novato homes with settling foundations, the fix sometimes means re-leveling the threshold and adjusting the strike plate. It’s a smaller job, usually $200 to $450, and it makes an immediate difference on foggy mornings.
Trusted Brands We Service in Novato
We stock and install PGT, CGI, and Therma-Tru doors, so Novato homeowners aren’t stuck waiting on a warehouse in another county. If you have a PGT entry system with impact-rated glass, we know the hardware, the hinge specs, and the glazing requirements. If you’re replacing a tired wood door with a Therma-Tru fiberglass unit, we can match the grain and finish to your existing trim. We don’t push a door you don’t need. We’ll tell you which brand fits your exposure, your WUI zone, and your budget, then write the price down so you can decide on facts.
Common Door Replacement Problems We See in Novato Homes
- Fog-belt rot in wood jambs. The Ignacio and Hamilton areas catch more fog than the rest of Novato, and that moisture works its way into bottom hinge pockets. Within a few years, the door sags, sticks, or won’t latch. The fix is a rot-resistant composite jamb with proper flashing, not another pine jamb that’ll rot the same way.
- WUI fire-rated assembly oversights. Homes built before 1995 often have original doors that don’t meet current Marin County WUI codes. Replacing an exterior door without checking the fire-rating requirement leads to a failed inspection and a reorder. We verify the assembly spec before we quote so there’s no surprise at the end.
- Water intrusion behind stucco and siding. Older Novato homes frequently lack pan flashing under the door threshold. Water gets behind the stucco or siding, rots the sheathing, and you only see it once the old door is out. We install proper pan flashing and sealant on every exterior door replacement, because skipping it just moves the problem deeper into the wall.
- Swollen door slabs from seasonal humidity swings. A wood door that fits fine in September might bind in February after a wet winter. If you’re already replacing the door, we’ll steer you toward fiberglass with a composite jamb so the door moves less with Marin County’s seasonal moisture.
Pricing for Door Replacement in Novato, CA
A basic slab replacement on an interior door in Novato starts around $400 to $700, including hardware and labor. Exterior door slab swaps run $900 to $1,600 if the jamb is solid. Full exterior pre-hung replacements, which is what most Novato homeowners actually need, land between $1,800 and $3,200 for a standard WUI-compliant fiberglass entry door. Add sidelites, impact-rated glass, custom paint-grade trim, or a fire-rated assembly and you’re looking at $3,500 to $4,500 or more. Door frame repair alone runs $350 to $1,400 depending on how much of the jamb has rotted. Every job gets a written, line-item price before any work starts, and that price doesn’t change unless you change the scope. Call (682) 281-2168 for a free estimate.
We Also Serve Cities Near Novato
Our Door Replacement in Novato work regularly takes us into Fairfax, San Anselmo, Petaluma, and San Rafael. If you’re just outside Novato and wondering whether we cover your street, the answer is almost certainly yes. Same written pricing, same 365-Day Done Right Promise.
Serving Novato, CA - Our Local Coverage Area
We’re based in the Novato area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Door Replacement in Novato
Yes, in most cases. Novato requires a building permit for exterior door replacements because the opening is part of the building envelope and subject to Marin County WUI fire-rating requirements. Interior door swaps don’t need a permit. We pull the permit, schedule the inspection, and stand with the inspector so you don’t have to navigate the city’s process alone. Call (682) 281-2168 if you’re unsure whether your specific project needs one.
A fiberglass door with a rot-resistant composite jamb is the best choice for Novato’s fog belt. Fiberglass doesn’t absorb moisture, swell, or rot the way wood does, which matters in the Ignacio and Hamilton areas where marine air hangs around. We pair the slab with proper pan flashing and a low-E insulated glass lite when glazing is part of the design. For most Novato homes, it’s the practical answer.
Novato sits in Marin County’s WUI zone, so exterior door replacements must meet fire-rated assembly standards. That includes the door material, the glazing type (usually tempered or laminated), and sometimes the frame hardware. If your home is in a designated WUI area, we verify the code requirements before quoting so you don’t order a door that fails inspection. We handle the compliance paperwork as part of the job.
Yes, in many cases. If the door slab is solid but the jamb has rotted at the bottom from fog and rain, we can splice in rot-resistant material, re-shim the opening, and reset the hinges without replacing the door itself. Jamb repair typically runs $350 to $700 in Novato. It only makes sense if the slab is worth saving; if the door is 20 years old and warped, a full replacement is often the better investment. Call (682) 281-2168 and we’ll give you an honest read.
Most Novato door replacements take one day for the installation itself. Lead time depends on whether we’re ordering a custom door or pulling from stock. WUI-compliant doors and custom sidelites can take two to four weeks. Permits from the city add to the calendar but we handle that in parallel with product ordering. We’ll give you a realistic timeline at the estimate, not a hopeful one.
Call Juniper Windows & Doors at (682) 281-2168 to schedule your free door replacement estimate in Novato. You’ll get a written price, a real arrival time, and a door that closes right on the first try.
Written by Sean Mackey, Owner at Juniper Windows & Doors.










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